The competition has narrowed the field down to 20 finalists. Some standout favorites include a "T-trees" concept of stackable cube modules providing living space and even renewable wind power, and an "Airbia" vision of suburban, teardrop-shaped airships replacing that horrendous commute through traffic.
One of the top vote-getters, an "Urban Sprawl Repair Kit," lays out a more practical plan for re-purposing or adding new structures instead of demolishing space-wasting gas stations, strip centers, restaurants and homes.
McMansions alone get two redesign proposals that would transform uninhabited homes into wetlands and green spaces. And another idea would create "Regenerative Suburb Medians" in the middle of wide roads that treat sewage, produce agriculture and boost social activity within neighborhoods.
So why wait on giving American beauty a makeover? Go here to vote on your favorites among the top 20 finalists. Or check out PopSci's own eco-savvy Green Mega City blueprint for the future, and a previous list of America's 50 Greenest Cities.
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